Hoisting and dumping means for trucks carrying dirt



y 28, 3 R. NUSSBERGER ETAL 2,645,902

HOISTING AND DUMPING MEANS FOR TRUCKS CARRYING DIRT Filed Jan. 24, 1949 3 Sheets-Sheet 1 FIG JEAN PELLAT- FINET mfw ATTORNEYS y 8, 1953 R. NUSSBERGER ET AL 2,646,902

HOISTING AND DUMPING MEANS FOR TRUCKS CARRYING DIRT Filed Jan. 24, 1949 3 Sheets-Sheet 2 FIG. I2.

INVENTORS RENE NUSSBERGER JEAN PELLAT-FINET BY JMv M ATTORNEYS y 1953 R. NUSSBERGER ET AL 2,646,902

HOIS' IING AND DUMPING MEANS FOR TRUCKS CARRYING DIRT Filed Jan. 24. 1949 3 Sheets-Sheet 6 INVENTORS RENE NUSSBERGER JEAN PELLAT-FINET BY 5 E 26 ATTORNEYS Patented July 28, 1953 HOISTING AND DUMPING MEANS FOR TRUCKS CARRYING DIRT Ren Nussberger and Jean Pellat-Finet, Lyons, France, assignors to Societe Sovel Vehicules Electriques Industriels, Villeurbanne, France, a

' corporation of France Application January 24, 1949, Serial No. 72,392

InFrance January 31, 1948 This invention relates to means for emptying trash cans or bins into collecting vehicles with-,

out liberating. dust. Such bins are generally provided at their upper edge with a hooking bar which enables them to be hung on hooks placed on the pick-up truck and rocked or swung or tilted for the purpose of emptying them. The manipulation of these bins requires powerful forces, especially when they are of large capacity,

or tilted automatically by the aid of a hoisting and rocking or bascule .mechanism, upon which a continuous linear or rotary movement is impressed, which is then'converted into a discon tinuous movement.

Other features of the present invention will appear in the course of the following description, with reference to the accompanying drawings,

in which several forms of construction of the device according to the present invention are illustrated by way of example.

Figs. 1, 1a, 2, 3, show one form of construction of the present invention in side elevation in different positions; Fig.. 1a corresponding to the .bin raised up half-way, Fig. 2 showing the high est position of the bin, and Fig. 3 showing the final dumping position; Fig. 3a shows a detail of the return spring in extended position duringthe dumping of a trash box before it has effected its recoil action;

Figs. 4 and 5 show a first modification of the invention, using chains and one hydraulic jack;

Figs- 6 and 60, show a second modification using two hydraulic jacks connected to one common supply pipe;

. Fig. 7 shows a modification of the arrangement of Figs. 1-3, using endless chains;

Fig. 8 shows a detail of the structure for controlling dumping, and shows the bin when it has attained a horizontal position during the course"- showing the pivot carrying a resilient roller and 5 Claims. (01. 214-313) lowing manner.

the axially mounted are pieces fixedly carrie by the rim;

Fig. 12 is a detail of the circular lock showing the two axially mounted are pieces attached rigidly to the bin-carrying frame; and

Fig. 13 is a detail cross-section taken on the line l3|3 of Fig. 8, showing the parts of the circular lock illustrated in Figs. 11 and 12.-

As shown in Figs. 1, 2 and 3, the device forming the subject of the present invention is constituted essentially of two hinged quadrilaterals placed spacedly side by side. For the clearness of the drawing, only one quadrilateral has been shown in these figures, the other one being behind the one shown. These'quadrilaterals are each formed of two lateral pieces or cranks or arms I and 2, capable of turning about two fixed pivots 3 and 4, fixed to the vehicle body B, and of a coupling rod or link 5, connected at its two ends to trunnions or pivots I and I0 carried by lateral pieces I and 2, respectively, at their ends remote from fixed pivots 3, 4.

In the form of construction illustrated in Figs. 1, 2, 3, each hinged quadrilateral is constituted by a parallelogram, which is a particular'case of the general quadrilateral. This latter is, however, utilized by preferance, ior'it permits nonparallel movements of translation, which are useful in certain cases.

The upper lateral pieces or cranks l of the two quadrilaterals carry at their ends remote from fixed pivots 3, 4, a frame 6, which they engage by means of pivots or trunnions I. Upon this frame (i are fixed hooks 8 for the holding of thebin 9 by the hooking bar 9a on its upper edge.

The frame 6 is supported against the coupling rod 5 at its arm II, and itself forms a supporting back for the bin 9. It is temporarily secured to the coupling rod 5 by a hook l2. Two wheels l3 of which only one is shown, are constructed fixedly integral with the frame 6. On the other hand, upon the fixed pivot 3, are placed two freely rotatable wheels M, of which only one is shown. Around the wheels 13 and I4 there is wound a cable I611 attached at pin i 5 to one of the wheels l3, or else a stud chain, the two halves of which would then be mounted in different planes, starting from the point of attachment l5 on the wheel I3. This device of Figs. 1, 2, 3, operates in the fol- If a pull is exerted upon the terminal portion l6 of the cables or chains lie,

the lateral pieces or cranks I and 2 turn about their pivots, thereby raising the assemblage formed by the coupling rod 5, the frame 6 and the bin 9. As the can or bin 9 rises, the frame 6 and the bin 9 maintain their relative positions with respect to the coupling rod 5 until the hook l2 encounters a releasing cam face arm H, carried by theelateral piece or crank l-, which lifts and disengages hook 12. At this moment, as shown in Fig. 2, the lateral pieces or cranks I encounter fixed stops 18 of which only one is shown, provided upon the vehicle body B, which stops them. If the pull upon "the terminalportion l6 of the cable or chain continues, the-integral wheel l3 begins to revolve, taking with it the frame 6 and the bin 9 right up to the extreme dumping positions, as shown in Fig. 3. Thecontents of the bin falls out through the rim piece 21 and follows an inclined plane 33 to finally fall into the body of the truck,

A pull upon the other terminal portion IQ of the cable or chain l6a will cause the returnand the descent of the frame 6 and of the bin 9, the imovements being efiected in the reverse order.

The pulls upon the cable terminal portions i6 =and-15 may be exerted by any convenient means, such as hydraulic-jacks.

Figs. l and 5, infront and :side elevation, show another :form of construction. This form of :construction -comp-rises two assemblages of chains 16c and-wheels :Mplaced side by side, the ends ofrthe chains .4260, beingconnected to a balanci-ng rock-e 26, upon .the middle of which bears themi-ston-of a hydraulic jack 2 l. The return is .efiectedby-two springs 22, 2-2., pulling upon the terminal --por-ticns l'9e0fthe chains Hie, I60.

Fig.5 shows a-side viewofanother form of. construction of which a single system of quadrilat- *eral-s, chains, wheels, and jacks-is illustrated, there being a similar *system back of the one shown. 6a .is atron-t view-of the arrange- :men-tsshown. in F-ig; 6,- and shoWs both systems of quadrilaterals, chains, WheelsandjacRs, and the 1 common supply pipe for .the Jacks. .The drive is constituted bytwo hydraulic Jacks 3 3, 33,, of which zonly-one is shown in Fig. 6,.each .of which jacks exer-tsa pull-upon the portion of each chain 4-6 and 46b, through "the medium of a pulley .34,

carried on :the piston of the jack =33,-.the endof .each -.cha-in being attached to a fixed point 35. The -.ee1ualityo-i the forces applied by the .two chains l6, ISb, is then obtained hydraulically, or .the two jacks-.33, 33 are connected in .paral- .lel to the same common pipe .31 supplying .l-iquid -under spressure.

Fig. 7 shows a still furthermodification in which the narrangement v.is identical with thatshown in Figs. L1,.2, 3,- with this differencethat thechains (16., '35, sci which .only 7. one is shown, are endless :and pass around the two pairs .of .wheels t3, [3, and M, 44,.of which only one .pair isshown, the wheels I 4..-being mounted keyed to .the-pivot shaft '3. Only one wheel l3.andone wheel 14 is shown, .the other wheel .13 and the other wheel 14 bein -back-.of the ones shown. It willbesufficient to rotate .this shaft 3 in order to obtainfirst the arotationof .thelateral pieces .or cranks I and .2, and then :the rotation of the Wheel [3, of the .irame 6,-and-of .the .bin 9, as in the device shown ,.in.Figs..1,I2,-3. .Arrotation in the opposite direction will .causethe return and the descent of the bin.

Thetrotation of this shaft3 in botl'i'fdirections .maybeefiected by any convenient means, for instancehydradlic jack, by a tensionspring, .or through themediumof a rack and toothed wheel, or equivalent device.

.In theiorm of construction illustrated .in Fig.

to the lug of rim 2.1.

21, pushed bythe bin 9, a turning movement has 4 '7, the drive is constituted by a rack 23 actuated by a hydraulic jack 24. The rack 23 drives a pinion 25, which is mounted rigidly on th shaft 3. The return of the assemblage is effected by a spring-26.

These tilting.,:'devices for dumping trash cans without liberating dust, as have been described,

comprise, as illustrated particularly in Fig. 8, a lunette or rim 21 formed of a frame pierced with a circular orifice against which the open top of "at -its lower and is returned into its positionc-f rest by'aespring 21a, whose ends may respectively be attached to the truck chassis and For the rocking of the rim tobe exerted, which causes a force tending to push hack the bin-carrying frame 6 and cause rebound or recoil movement.

:This recoil movement ,is prevented, according to the present invention, bya circular lock, which .mechanically connects .fr-ame ,6 to tilting .rim 2].

Fig. 9 represents the relative positions of the-parts of this .lock at .the .time when the .frame. 6 .is

pressedagainst theioot ofithe rim .2'7.,,and.Fi g. .10 representsthe ,positions of these parts after the frameii and the .bin .9 have efiected part of their displacementin the course .of the rocking movement, and the bin .Bhascome into contact with the .rim.2!. The parts (218, '2B,.- 3|, s'hown'infigs. .Qand 10,.are mounted on .pivot .28 shown in Fig. 8,, .and con-nectriin .21 .of. Fig. .8 to/frame 6 thereof. The axisof ,pivot 28 .iscollinear with theaxis .o'fpivot Land the two pivots-aremountedin axially mutually spacedrelaltion.

The piyots'haft EBlisfiXedIy attachedtorim Z1 and .carriesa roller 29 ofresilient material, and a fixed arc piece 3'0 concentric .withits horizontal pivot28, .upon which rim '2'! .androller .29 are rotatably mounted. Th frame 6, .on .the other hand, carries ,anabutment ,arc piece .34., which comes to bearsagainst theresilient.roller 29. .It also carries a concentric .arc piece .32.. At the time of the rotation of the "frame 15, the-arc .piece 32 takes up aposi'tionibehind the:flXed arcpiece 3.0, which .prevents .therecoil ..QI .rehound .towards the right of .theframe '5.

The radial spacings of are pieces 3.l,-3ll,32,.are exaggerated'in FigsJQ andlO, to make the drawing clearer. During the rotationofbin .9 in-contact with frame 6 and rim '2], and on-theposition of Fig. '10,theforce ofrecoiltendingto pushback frame 6 'is taken 11 23 the arc pieces 31,30,312, andresilient roller ,29.

"Figs. 11'1, I2,I3 show,in different .views, the circular lockofFigs. 9 and 10.

It will be-understood'that theraising androcking device'thathas just been described, may find its application not only in the emptying of ,dust

"bins, but in all those cases'in which a load has to be raised to a *certainheight a ndthen tilted by rotation. I

We claim:

'1. In apparatus forlifting and dumpingloaded cans into a vehicle body, a vehicle body, --a first fixedpivotan-da second 'fixed pivot attached to said vehicle 'bodyand Psai'd first fixed pivotbeing positioned above :said second fixed pivot, -a first longitudinal member pivotally mounted on said first fixed pivot, -a zsecond :longitudinalmember ,pivotally mounted on said second fixed pivot, a

first auxiliary :pivot vmoun-tedlonsaid first longitudinal member omits-end remote fromsaidfirst :fixedpivot, .a second auxiliary pivot mounted on bar on its upper edge, said frame comprising hooks engageable with said hooking bar, a second pulley fixedly mounted on said frame adjacent said first auxiliary pivot, a hoisting cable wound around said two pulleys and being fixed at a point on said second pulley, means for applying tractive force to said cable, a locking lug fixedly carried on said cross rod, a releasable latch carried by said frame and releasably engageable with said lug, a releasing arm carried by said first longitudinal member and engageable with said latch for releasing the same when said first longitudinal member has been raised into a determined position, and stop means fixedly carried on said vehicle body and positioned to engage said first longitudinal member and stop its pivoting movement when it has been raised into its said determined position, whereby the application of continued traction to said cable after the attainment of said determined position by said first longitudinal member causes rotation of said second pulley and dumping of said can.

2. Apparatus according to claim 1, said apparatus being so constructed that said two fixed pivots and said two auxiliary pivots constitute the corners of a parallelogram.

3. Apparatus according to claim 1, said means for applying tractive force being a jack to which said cable is attached.

4. Apparatus according to claim 1, said cable being endless and being wound on said pulleys, and said means for applying tractive force being connected for causing rotation of said first pulley.

5. Apparatus according to claim 1, and a third auxiliary pivot extending in the same direction as and adjacent to said first auxiliary pivot, an open rim piece rockably mounted on said third auxiliary pivot for engagement with the upper edge of said can for restraining the same, and circular lock means for taking up and preventing recoil movement between said frame and said rim piece and comprising a resilient roller rotably mounted on said third auxiliary pivot, a first arcuate piece, a second arcuate piece, and a third arcuate piece mounted successively in mutually interleavable relation concentrically about said third auxiliary pivot and said roller at progressively increasing radial distances therefrom, and said first arcuate piece nearest said roller being in bearing relation therewith, said first and third said arcuate pieces being fixedly carried by said frame, and said roller and said second arcuate piece being fixedly attached to said rim piece.

RENE NUSSBERGER. JEAN PELLAT-FINET.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 723,771 Anderson Mar. 24, 1903 1,045,072 Parker Nov. 19, 1912 2,388,987 Morrison Nov. 13, 1945 

